Provision to start base::SimpleTestTickClock at initial ticks

media/cast/logging/simple_event_subscriber_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cast/logging/simple_event_subscriber.h"
 
 #include <utility>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/logging/logging_defines.h"
 #include "media/cast/test/fake_single_thread_task_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 
 class SimpleEventSubscriberTest : public ::testing::Test {
  protected:
   SimpleEventSubscriberTest()
-      : testing_clock_(new base::SimpleTestTickClock()),
+      : testing_clock_(new base::SimpleTestTickClock(base::TimeTicks())),
         task_runner_(new test::FakeSingleThreadTaskRunner(testing_clock_)),
         cast_environment_(
             new CastEnvironment(scoped_ptr<base::TickClock>(testing_clock_),
                                 task_runner_,
                                 task_runner_,
                                 task_runner_)) {
     cast_environment_->logger()->Subscribe(&event_subscriber_);
   }
 
   ~SimpleEventSubscriberTest() override {
@@ skipping 72 matching lines @@
   // Calling this function again should result in empty vector because no events
   // were logged since last call.
   event_subscriber_.GetFrameEventsAndReset(&frame_events);
   event_subscriber_.GetPacketEventsAndReset(&packet_events);
   EXPECT_TRUE(frame_events.empty());
   EXPECT_TRUE(packet_events.empty());
 }
 
 }  // namespace cast
 }  // namespace media